Are you giving her some B vitamins along with the vitamin E. I would suggest using B complex tablets 1/4 tablet per day. That contains riboflavin. Riboflavin defidiency can cause sitting on hocks and curled under toes. Mareks can cause that as well, but if it is riboflavin (B2) deficiency, it may improve within a week. If you are using other chick vitamins, that would work fine, as long as they contain riboflavin on the label. Plus thiamine, B1, is needed to help with wry neck. I hope that she improves.